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3.19.1 Alarm
List
The alarm list provides an overview of active alarms (alarms that are still on). Up to 5 alarms can be displayed.
B alarms:
Reset automatically (except where filter timers have been used (not a pressure guard). This must be
reset manually).
A alarms:
Must be reset manually (Test I Alarm I History I Reset Alarm).
Alarm point
Input
Alarm class
Description
A_Alarm
-
Joint alarm (class A alarm active)
B_Alarm
-
Joint alarm (class B alarm active)
Frost sensor out of range
Signal B6 <-45°C and
>+50°C
A
Temperature sensor in the cross heat exchanger is
out of its measuring range. Sensor fault or sensor
not connected.
Supply air sensor out of range
Signal B1 <-45°C and
>+50°C
A
Temperature is out of its measuring range.
Sensor fault or sensor not connected.
Extract air sensor out of range
Signal B3 <-45°C and
>+50°C
Temperature is out of its measuring range.
Sensor fault or sensor not connected.
Outdoor air sensor out of range
Signal B4 <-45°C and
>+50°C
A
Temperature is out of its measuring range.
Sensor fault or sensor not connected.
Return water sensor out of range
Signal B5 <-45°C and
>+80°C
A
Temperature is out of its measuring range.
Sensor fault or sensor not connected.
Frost sensor not connected
Signal TA active
A
Alarm unless the frost guard for the cross heat
exchanger is connected (applies only to units with
cross heat exchangers)
Thermostat active
Signal BT active
A
Overheating thermostat has been triggered on
account of excessive temperature in electric
battery
Fire/smoke sensor active
Signal BR active
A(*B)
External signal from fi re or smoke detector
Rotor alarm active
Signal RA active
B
Alarm from the rotor heat exchanger unit
Motor protection active
Signal TP active
A
Alarm signal from motor protection. Joint alarm for
the supply air and extract air fans
Water battery frost alarm
Low return water
temperature
A
Frost alarm from water battery on account of low
temperature in the water battery
Filter alarm
Filter alarm
B
Filter replacement alarm (only in units without a
pressure guard)
Supply air fi lter alarm
Signal TFI
B
Filter alarm for supply air
Extract air fi lter alarm
Signal FFI
B
Filter alarm for extract air
* Here you can choose whether the unit is to stop or continue.
The right to give notice of lack of conformity applies to this product in accordance with the existing terms of sale,
provided that the product is correctly used and maintained. Filters are consumables.
The symbol on the product shows that this product must not be treated as household waste. It must be taken to
a reception station for recirculation of electric and electronic equipment.
By ensuring the correct disposal of the equipment, you will contribute to preventing the negative consequences for the environment and
health that incorrect handling may entail. For further information on recirculation of this product, please contact your local authority, your
refuse collection company or the company from which you purchased it.
Notice of lack of conformity as a result of incorrect or defective installation must be submitted to the installation company responsible. The right to give
notice of lack of conformity may lapse if the system is used incorrectly or maintenance is grossly neglected.
